What was found
KIN/ORD - FLT JM 051 - ON CLIMBING THROUGH 10,000 FEET, NR 2 ENGINE GENERATOR FREQUENCY WENT LOW (390 HZ) CAUSING THE GENERATOR TO TRIP OFF-LINE. THE AIRCRAFT RETURNED TO KINGSTON. ON LANDING, MAINT CARRIED OUT AN INVESTIGATION, FOUND THE CSD AT FAULT. AIRCRAFT REMOVED FROM SERVICE FOR A CSD CHANGE. THIS REPORT REMAINS OPEN UNTIL THE CSD CHANGE HAS BEEN COMPLETED. (X)